
Nosoud Water Conveyance Tunnel
Location
The inlet of Nosoud Water Conveyance Tunnel is located 30 km north of the city of Paveh adjacent to the Village Hirvi and the tunnel outlet is located in 60 km of the City Sare Pol Zahab near to the Village Ezgeleh.
History
Nosoud Water Conveyance Tunnel is one of the oldest projects of the country. The project studies started in 1939. This project was awarded to Mahab Ghodss Consulting Engineering Co. in 2010. The project includes 2 lots of Lot 1 and South Leyleh. The Lot 1 of Nosoud Water Conveyance Tunnel is divided into two lots of 1A and 1B.
Objectives
The main objective of Nosoud Water Conveyance Tunnel is to transfers the water diverted from the River Sirvan to the downstream Plains.
Specific Characteristics
Lot South Leyleh: Intensive water seepage and gas, negative slope of the tunnel and excavation under water
Project Specifications
Tunnel Length (M) |
Lot 1A: 13728 Lot 1B: 9000 South of Leyleh: 6000 |
Tunnel Section |
Lot 1A: Circular Lot 1B: Circular South of Leyleh: Circular |
Excavation Diameter (M) |
Lot 1A: 5.27 Lot 1B: 6.12 South of Leyleh: 6.12 |
Final Diameter (M) |
Lot 1A: 4.5 Lot 1B: 5.40 South of Leyleh: 5.40 |
Tunnel Slope |
0.0008 (All Lots) |
Excavation Method |
Mechanized |
Water Transfer Capacity (M3/ sec.) |
Lot 1A: 35 Lot 1B: 70 South of Leyleh: 70 |
Elevation at the Beginning (masl) |
Lot 1A: 617.31 Lot 1B: 639.43 South of Leyleh: |
Elevation at the End (masl) |
Lot 1A: 624.65 Lot 1B: 634.13 South of Leyleh: |
Lining Type |
Lot 1A: Tetragonal Segment Lot 1B: Hexagonal Segment South of Leyleh: Hexagonal Segment |
Average Daily Excavation Rate |
Lot 1A: 15.89 Lot 1B: 9.81 South of Leyleh: |